The term 'Historical Scott' refers to the American lawyer and politician, John Scott. He was born in 1730 in Pennsylvania and served as a member of the Continental Congress from 1776 to 1778. He was also a signer of the Declaration of Independence and a delegate to the Constitutional Convention. His most famous role was as the Chief Justice of the Supreme Court from 1801 to 1835. The crossword solution for this term is 'Dred', which is a reference to his landmark decision in the Dred Scott v. Sandford case. This case determined that African Americans were not citizens and could not sue in federal court.